Question about Tiger P4 Ready 300W (ps-atx-300p4) Power Supply

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No power on the pc

Unit will not power up.. my son said it needs a new power supply,,it is a tiger pro. modeltp300... it was a home pc. 300watt unit... are they still avalible????? . if so i can be reached at
thanks john

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Re: no power on the pc

Hello, you can find them on ebay, If you get a new one and it does not work, the moterboard could be bad. 2 things, the power box or the motherboard.

Posted on Nov 26, 2007

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Hi, in Antec 300watt power supply there is 3 cables or input or current 220volt. The cables are Black, Green and white. Which one is earth, which on is live(positive) and which one is negative?

For 120 volt operation use
black for the hot, White for the natural, Green for earth ground.
For 240 volt operation use;

Black and White for the 240 volt and Green for earth ground.
Black is generally designated as the "Hot" or "positive" .
You must make sure the switch on the power supply is set for the voltage you are using. ie: 120/240

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TG-3018 Tiger power supply for NCR POS PC system...keeps shutting off within 5 minutes of starting.

Is it overheating, and shutting itself down, to prevent heat-related damage?
Check that any fans inside the unit are still working.
Replace it.

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I have an old computer but it has the fsp power supply my computer wont even turn on. If I order a new power supply and install it should it work?

A new power supply will work. Just make sure that the wattage is not lower than the original. The other outputs are standard.

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1 Answer

This is the THIRD power supply to fail in 9 months. How do I send it in for Mfg Warranty replacement?

Take it back to the retail store, and get them to do the warranty-replacement.

Or, use the telephone-number and/or web-site information printed on the label of the power-supply, to contact the manufacturer.

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Hello !I m trying to repair atx psu-300watt.In the beginning i changed the filter capacitors in first circle,one diod fr 107 and a resistor.Now i only have voltage on lilac cable(standby) 7volts.Would you...

These switching power supplies MUST HAVE A LOAD on them to work properly.

Often, without load, they spike up to overvoltage and OFTEN they will immediately shut themselves down.

If you found a shorted diode, likely there may have been a second one that is defective as well. A bad diode will often unbalance the regulation of the unit.

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1 Answer

Power will not stay on

PSUs don't last forever, 3 / 4 years they are dead or going.
use a digital muti-metre to test the Molex connections
should be 12volts, 5volts, and 3.5 volts for motherboard conns.

or with E.S.D. kit Replace the PSU, very quick and easy job.

15 minute job.

Hope this helps

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I am looking to have multiple power supplys repaired. Do you guys do this? 3y and Delta power supplys

Generally power supplies are difficult to fix if something's wrong, and it probably would cost more than they're worth. You're better to just spend the money on new ones. They aren't too expensive to replace. Unless it's something visible on the outside like a fraying wire or a broken connector, which can be fixed with a bit of solder and shrink tube or maybe an extra connector, you're better off replacing than repairing.

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